For the address 172.30.173.68/23, what is the binary conversion of the broadcast address?
A) 10101100 00011110 10101100 11111111
B) 10101100 00011110 10101101 11111111
C) 10101100 00011110 10101110 11111111
D) 10101100 00011110 10101111 11111111

Question

Quizplus · Accepted Answer

B) The address 172.30.173.68 is a Class B address, which means the first two bits are 10 and the next 14 are reserved for network bits. The other 16 bits are used for hosts. With the mask of /23, or 255.255.254.0, the host portion is subdivided to provide 7 host bits to be used for subnet and the other 9 host bits to be used for host space. This means the first 23 bits will be the same for all the devices within a subnet, with the highest number being used for the broadcast address. The address 172.30.173.68 converts to 10101100 00011110 10101101 01000100 in decimal. The first 23 bits don't change; the rest of the bits change to 1s to get the binary broadcast address 10101100 00011110 10101101 11111111.

For the Address 172